Home / 56,997.12-85,421.14-30,645.12

Finding the Fourth Proportional to 56,997.12, 85,421.14 and 30,645.12

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Solution

The fourth proportional to 56,997.12, 85,421.14 and 30,645.12 is: 45,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,997.12 : 85,421.14 = 30,645.12 : x
  2. Step 2: Convert to fraction form
    56,997.12/85,421.14 = 30,645.12/x
  3. Step 3: Cross multiply
    56,997.12x = 85,421.14 × 30,645.12
  4. Step 4: Simplify right side
    56,997.12x = 2,617,741,085.84
  5. Step 5: Solve for x
    x = 2,617,741,085.84/56,997.12
  6. Step 6: Final answer
    x = 45,927.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.